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Waite Permanent Rotation Trial
History: rotation phase for each plot from 1925 to 1993.
Grain yield: for each plot from 1925 to 1993.
Total dry matter: for each plot from 1925 to 1991.
Pasture cuts: for each plot from 1950 to 1991.
Pasture composition: for each plot from 1950 to 1991.
Monthly climate data: from 1925 to 1993.
Soil carbon data: measured total organic carbon (by co... morembustion) and size fractions (by MIR-PLSR prediction) and delta 14C values for select plots for 1963, 1973, 1983 and 1993 for each of 0-10 cm and 10-22.5 cm depths. less
Agricultural Land Management
Agricultural Production Systems Simulation
Carbon Sequestration Science
Crop and Pasture Production not elsewhere classified
Farming Systems Research
Soil Sciences not elsewhere classified
The data were collated by Jonathan Sanderman, CSIRO Agriculture flagship, from a number of sources. No custodian exists for data from this historic trial.
New measurements were made on archived soil samples by Jonathan Sanderman (CSIRO).
Pasture yield and composition were entered by Andrew Moore (CSIRO) from hard-copy experimental files.
Crop yield data were collated by Heather Keith (Waite Agricultural Research Institute).
Users are directed to the following publications for further information:
Grace, P.R., Oades, J.M., Keith, H., Hancock, T.W. 1995 Trends in wheat yields and soil organic carbon in the Permanent Rotation Trial at the Waite Agricultural Research Institute, South Australia doi:10.1071/EA9950857
Moore, A.D., Grace, P.R. 1998 Effects of annual pasture composition on subsequent wheat yields in the Waite Permanent Rotation Trial,
The Permanent Rotation Trial at the Waite Campus in Urrbrae, South Australia was established in 1925 under the direction of Prof. Arnold Edwin Victor Richardson, the inaugural Director of the Waite Agricultural Research Institute. The purpose of the trial was to determine the effect of different crop rotations on the yield of wheat. From the time of its establishment until it was terminated, the trial was supported by the Waite Agricultural Research Institute at the University of Adelaide.
Creative Commons Attribution 4.0 International Licence
CSIRO (Australia), Waite Agricultural Research Institute (Australia)
Sanderman, Jonathan; David, Rakesh; Moore, Andrew; Keith, Heather; Farquharson, Ryan (2015): Waite Permanent Rotation Trial. v4. CSIRO. Data Collection.
All Rights (including copyright) Waite Agricultural Research Institute 2015.
The metadata and files (if any) are available to the public.
1179.2 Uncertainty quantification in soi
A long-standing agroecological dichotomy states there is a tradeoff between storing carbon as soil organic matter (SOM) and the nutrient and energy benefit provided during its decomposition. Here we report on results from the Waite Permanent Rotation Trials which demonstrate that management which return more carbon to the soil not only leads to gre... moreater carbon stocks, but also increases the rate of carbon cycling and thus nutrient provision from SOM relative to a low carbon return management. After >40 years under consistent management, topsoil carbon stocks ranged from 14 to 34 Mg C ha-1 and were linearly related to the mean productivity of each treatment. Measurements of organic matter composition demonstrated increasing amounts of plant- and microbially-derived SOM along the productivity gradient. Radiocarbon data indicated overall SOM turnover time decreased from 40 to 13 years with increasing productivity. Similarly, the half-life of synthetic root exudates decreased from 30.4 to 21.5 hours with increasing productivity indicating accelerated microbial activity. These findings contradict a core tenant of many soil carbon models and suggest that there is a direct feedback between accelerated biological activity and carbon cycling rates. less
Soil carbon measurement
Measurement of soil organic carbon and fractions, including isotopic signatures.
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